///<reference path="../GL/shader.ts"/>

namespace TSE {

    export class BasicShader extends Shader {

        public constructor() {
            super("basic");

            this.setSource(this.getVertexSource(), this.getFragmentSource());
        }

        private getVertexSource(): string {
            return `
                attribute vec3 a_position;
                attribute vec2 a_texCoord;

                uniform mat4 u_projection;
                uniform mat4 u_model;

                varying vec2 v_texCoord;

                void main() {
                    gl_Position = u_projection * u_model * vec4(a_position, 1.0);
                    v_texCoord = a_texCoord;
                }
            `;
        }

        private getFragmentSource(): string {
            return `
                precision mediump float;

                uniform vec4 u_tint;
                uniform sampler2D u_diffuse;

                varying vec2 v_texCoord;

                void main() {
                    gl_FragColor = u_tint * texture2D(u_diffuse, v_texCoord);
                }
            `;
        }

    }

}